Anybody try running 295s at the front? Adequate clearance full turn?

 

40mm is quite the increase, but it could be possible without fender work. However I can only imagine the rock slinging issue would be magnified substantially. I can measure if you like when I lower my car.

 

Keep in mind that the offsets for the two wheel sizes are adjusted to ensure that the faces remain in the same plane, so there should be no additional exposed rubber at the exterior part of the fender. The question will be whether there is adequate clearance at the inner fender and with the steering linkage. The entirety of the additional width will be towards the interior fender wall. In my case, I'm using 15mm spacer, so the wheel would only be encroaching by 25mm towards the interior. It would be easy enough to take one of the rear wheels and swap with a front and see if there is any interference. I have always been of the opinion that a well balanced road car should have the same rubber all around. I can see the R needing bigger rubber in back, but certainly not the base or S.
My C4 Vette handled so much better when I went with 315s on all 4.

 

Every generation of Corvette since the C4 has used staggered wheels roughly equivalent to F-Type proportions. My C7 Z51 has PSS 19's (245/35) up front and 20's 285/30 in the rear. Other than the Lotus, which also used a staggered set-up, it's the best handling car I've ever driven.

It seems to me that fatter tires in front would dull that sharp turn-in feel you want in on the twisties.

 

There is no doubt in my mind that the turning radius and turn-in feel would be compromised, and certainly not something I would do for the street. However, I
would like to track test high speed cornering traction to see if the wider tires will let you brake deeper into the turn.

 

Does the front to rear stagger have any effect on the electronic aides... DSC, ABS, TVB, etc?

 

No, only tire diameter differences might create issues. Our staggered tires are all roughly the same diameter.

 

I would be very cautious of introducing more oversteer, as the car is already prone to it.

 

Hmmm . . . I'm thinking it might even cause the car to push (understeer), if not on dry, possibly on cold or wet pavement. I'd also worry more about hydroplaning. Those are some pretty big water-skis

 

Good thing we have Unhingd as a guinea pig. If we hear about green F-type rapid unscheduled disassembly on the evening news, we will know it didn't work out.

 

You are so right!

 

i don't experience that with the PSSs. It will only oversteer with too much throttle.

+1. I would not set up the car that way for the street, only for dry track conditions.

 

From the last look I took, I think you'd be really pushing it to add 25mm inwards.

Z28 Camaro. Square setup.

 

Yep, but much heavier car.

 

I suspect you are correct. I'll get into it this weekend and report back.

 

Interested in your results. I have a 2011 Camaro SS that I run 305's on all four corners as the Z28 does. It originally came with 245/275 staggered setup. Tires along with bigger front and rear bars create more oversteer but in a very manageable way. I do Auto X and am setting it up for Road Course. The wheel/tire change was a dramatic increase in handling. Also she's heavy as stated. 3800 lbs. but I believe my AWD F-type is 4100 lbs. so I would expect similar results. I would be worried about running spacers for long term. Better to buy wheels with proper offsets.

 

Good pt on the weight similarity. I wouldn't use spacers for AutoX or track time either, and a good set of forged wheels would shed considerable unsprung weight as well as modifying the offset for the desired stance.

 

+1. That would be my intent once I determine that the wider wheels/tires will fit.

 

Im a fan of the Forgeline wheels on my Camaro. They even have a warranty that covers the track so if it breaks they replace it. The guy who does the work on my Camaro is in Martinsville Va. If interested I can give you his contact info. He's dying to get his hands on the Jag but I'm reluctant to do anything drastic yet. I've only had it three weeks. Maybe in three more weeks.

 

I have other mods I'm focused before I throw money at the wheels, but I'll take you up on your offer at some point in the future.